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CN-224233406-U - Permanent magnet synchronous motor stator core formed by special-shaped punching sheets and stator thereof

CN224233406UCN 224233406 UCN224233406 UCN 224233406UCN-224233406-U

Abstract

The utility model discloses a stator core of a permanent magnet synchronous motor and a stator thereof, wherein the stator core comprises a first punching sheet, a second punching sheet and a third punching sheet, the second punching sheet is arranged at the upper end of the first punching sheet, the third punching sheet is arranged at the lower end of the first punching sheet, the teeth of the second punching sheet are less than those of the first punching sheet, and the plane structure of the third punching sheet is the same as that of the second punching sheet or the first punching sheet. The height of the enameled wire is lower than that of other coils by reducing the tooth parts of the special-shaped punching sheet I, specifically, 3 tooth parts in 9 tooth parts of the stator core are lower than that of other tooth parts, so that the height of the coil is lower than that of other coils, and 3 or 6 tooth parts in 12 tooth parts of the stator core are lower than that of other tooth parts, so that the height of the coil is also lower than that of other coils.

Inventors

  • YANG BAICHANG
  • LIAO HANGANG
  • DAI JINGXIONG
  • HONG PING
  • LIANG MANCANG

Assignees

  • 黄石东贝压缩机有限公司

Dates

Publication Date
20260512
Application Date
20250425

Claims (10)

  1. 1. The utility model provides a permanent magnet synchronous motor stator core that dysmorphism punching sheet was constituteed, its characterized in that includes punching sheet one (1), punching sheet two (2) and punching sheet three (3), the upper end of punching sheet one (1) is equipped with punching sheet two (2), the lower extreme of punching sheet one (1) is equipped with punching sheet three (3), the tooth portion of punching sheet two (2) is less than the tooth portion of punching sheet one (1), the planar structure of punching sheet three (3) with the planar structure of punching sheet two (2) or punching sheet one (1) is the same.
  2. 2. The stator core of a permanent magnet synchronous motor composed of special-shaped punched sheets according to claim 1, wherein when the planar structure of the punched sheet three (3) is the same as that of the punched sheet two (2), the positions of the upper and lower ends, where the punched sheet two (2) lacks teeth, correspond.
  3. 3. The stator core of a permanent magnet synchronous motor comprising shaped laminations according to any one of claims 1 to 2, characterized in that when the first lamination (1) is 9 teeth, the teeth of the second lamination (2) are 3 fewer than the teeth of the first lamination (1), and the three missing teeth are adjacent.
  4. 4. A stator core for a permanent magnet synchronous motor comprising shaped laminations according to claim 3, wherein the annular portion of the second lamination (2) is closed at the position lacking teeth.
  5. 5. A stator core for a permanent magnet synchronous motor comprising shaped laminations according to claim 3, wherein the annular portion of the second lamination (2) is open at the position lacking teeth.
  6. 6. A stator core for a permanent magnet synchronous motor comprising shaped laminations according to any one of claims 1 to 2, characterized in that when the first lamination (1) is 12 teeth, the number of teeth of the second lamination (2) is 3 or 6 less than the number of teeth of the first lamination (1), and the missing teeth are each 3 adjacent groups.
  7. 7. The stator core of a permanent magnet synchronous motor composed of special-shaped punched sheets according to claim 6, wherein when the number of teeth of the punched sheets II (2) is six less than that of the punched sheets I (1), each group of teeth missing from each punched sheet II (2) is arranged oppositely.
  8. 8. The stator core of a permanent magnet synchronous motor comprising a special-shaped punching sheet according to claim 7, wherein the ring part of the second punching sheet (2) is closed at the position lacking the tooth part.
  9. 9. The stator core of a permanent magnet synchronous motor comprising shaped laminations according to claim 7, wherein the annular portion of the second lamination (2) is open at the location where the teeth are missing.
  10. 10. A stator of a stator core of a permanent magnet synchronous motor composed of special-shaped punched sheets, characterized in that the stator core of any one of claims 1-9 is assembled with a corresponding cylinder block.

Description

Permanent magnet synchronous motor stator core formed by special-shaped punching sheets and stator thereof Technical Field The utility model relates to the technical field of stator cores and stators, in particular to a permanent magnet synchronous motor stator core formed by special-shaped punching sheets and a stator thereof. Background The stator of the permanent magnet synchronous motor used for the variable frequency compressor generally mainly comprises a stator core, a winding framework, an insulating tank bottom, enameled wire windings, a lead assembly and the like. According to the different installation modes of the winding framework, most stator cores are formed by laminating 1-2 punching sheets, and the appearance and the external dimensions of the punching sheets are basically the same. Fig. 13-14 show an example of teeth of a stator core 9 in the prior art, wherein the teeth and grooves of a first stator punching sheet and a second stator punching sheet in fig. 13 are different in size to form two punching sheets for winding framework installation, and the teeth of the two punching sheets in fig. 14 are provided with winding framework installation holes to form two punching sheets for winding framework installation. Fig. 15-16 illustrate teeth of a prior art stator core 12, wherein the teeth and slots of the stator laminations one and two of fig. 15 are sized differently to create two laminations for bobbin installation, and wherein the two laminations of fig. 16 are provided with bobbin mounting holes at the teeth to create two different laminations for bobbin installation. As shown in fig. 17, the height of each tooth of the permanent magnet synchronous stator core in the prior art is the same, and the number of turns of the enamel wire winding wound on the tooth is the same, so that the heights of all parts of the whole stator coil are basically the same as shown in fig. 18, and therefore, the parts of the mechanism of the compressor such as a cylinder block must be higher than the whole coil end face in design and assembly to ensure an electrical safety distance, thereby resulting in the limitation of the overall height of the compressor. There is currently no effective solution to the above problems. Disclosure of utility model Aiming at the technical problems in the related art, the utility model provides a permanent magnet synchronous motor stator core formed by special-shaped punching sheets and a stator thereof, which can overcome the defects in the prior art. In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows: The utility model provides a permanent magnet synchronous motor stator core that dysmorphism punching sheet was constituteed, includes punching sheet one, punching sheet two and punching sheet three, the upper end of punching sheet one is equipped with punching sheet two, the lower extreme of punching sheet one is equipped with punching sheet three, the tooth portion of punching sheet two is less than the tooth portion of punching sheet one, the planar structure of punching sheet three with the planar structure of punching sheet two or punching sheet one is the same. Further, when the planar structure of the third punching sheet is the same as the planar structure of the second punching sheet, the positions of the upper end and the lower end, where the second punching sheet lacks teeth, correspond to each other. Further, when the first punching sheet is 9 teeth, the teeth of the second punching sheet are 3 less than the teeth of the first punching sheet, and the three missing teeth are adjacent. Further, the punching sheet two-ring part is closed at the position lacking the tooth part. Further, the punching sheet two-ring part is open at the position lacking the tooth part. Further, when the first punching sheet is 12 teeth, the teeth of the second punching sheet are 3 or 6 less than the teeth of the first punching sheet, and the missing teeth are adjacent to each other in every 3 groups. Further, when the number of teeth of the second punching sheet is six less than that of the first punching sheet, each missing set of teeth of each second punching sheet is arranged oppositely. Further, the punching sheet two-ring part is closed at the position lacking the tooth part. Further, the punching sheet two-ring part is open at the position lacking the tooth part. A stator of a stator core of a permanent magnet synchronous motor composed of special-shaped punching sheets is assembled with a corresponding cylinder seat by using the stator core. The special-shaped punching sheet I has the beneficial effects that the height of the enameled wire is lower than that of other coils by reducing the tooth parts of the special-shaped punching sheet I, particularly, the height of 3 tooth parts in 9 tooth parts of a stator core is lower than that of other tooth parts, so that the height of the coil is lower than that of other coils, and the